package ebank.core.bank.third;

import java.io.IOException;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.net.SocketAddress;
import java.net.UnknownHostException;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;

import javax.net.SocketFactory;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;

import org.apache.commons.httpclient.ConnectTimeoutException;
import org.apache.commons.httpclient.params.HttpConnectionParams;
import org.apache.commons.httpclient.protocol.SecureProtocolSocketFactory;

class NoAuthSSLSocketFactory
  implements SecureProtocolSocketFactory
{
  private SSLContext sslcontext = null;

  private SSLContext createSSLContext() {
    SSLContext sslcontext = null;
    try {
      sslcontext = SSLContext.getInstance("SSL");
      sslcontext.init(null, 
        new TrustManager[] { new TrustAnyTrustManager() }, 
        new SecureRandom());
    } catch (NoSuchAlgorithmException e) {
      e.printStackTrace();
    } catch (KeyManagementException e) {
      e.printStackTrace();
    }
    return sslcontext;
  }

  private SSLContext getSSLContext() {
    if (this.sslcontext == null) {
      this.sslcontext = createSSLContext();
    }
    return this.sslcontext;
  }

  public Socket createSocket(Socket socket, String host, int port, boolean autoClose) throws IOException, UnknownHostException
  {
    return getSSLContext().getSocketFactory().createSocket(socket, host, 
      port, autoClose);
  }

  public Socket createSocket(String host, int port) throws IOException, UnknownHostException
  {
    return getSSLContext().getSocketFactory().createSocket(host, port);
  }

  public Socket createSocket(String host, int port, InetAddress clientHost, int clientPort) throws IOException, UnknownHostException
  {
    return getSSLContext().getSocketFactory().createSocket(host, port, 
      clientHost, clientPort);
  }

  public Socket createSocket(String host, int port, InetAddress localAddress, int localPort, HttpConnectionParams params)
    throws IOException, UnknownHostException, ConnectTimeoutException
  {
    if (params == null) {
      throw new IllegalArgumentException("Parameters may not be null");
    }
    int timeout = params.getConnectionTimeout();
    SocketFactory socketfactory = getSSLContext().getSocketFactory();
    if (timeout == 0) {
      return socketfactory.createSocket(host, port, localAddress, 
        localPort);
    }
    Socket socket = socketfactory.createSocket();
    SocketAddress localaddr = new InetSocketAddress(localAddress, 
      localPort);
    SocketAddress remoteaddr = new InetSocketAddress(host, port);
    socket.bind(localaddr);
    socket.connect(remoteaddr, timeout);
    return socket;
  }

  private static class TrustAnyTrustManager
    implements X509TrustManager
  {
    public void checkClientTrusted(X509Certificate[] chain, String authType)
      throws CertificateException
    {
    }

    public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException
    {
    }

    public X509Certificate[] getAcceptedIssuers()
    {
      return new X509Certificate[0];
    }
  }
}